ARCH - Arch Coal inc (ARCH) Q2 2021 Earnings Call Transcript July, 27 2021 05:00 PM Arch Coal Inc. Class A Image source: The Motley Fool. Arch Coal, inc (NYSE: ARCH) Q2 2021 Earnings Call Jul 27, 2021 , 10:00 a.m. ET Operator Continue reading For further details see: Arch Coal, inc (ARCH) Q2 2021 Earnings Call Transcript